Joint.



J. A. BROWNFIELD.

JOINT. APPLICATION FILED MAY 3:1915.

Fly 3 12 21 wiltmeooao Patented Feb. 15,1916.

- UNITED S ATENT, OFFICE.

JAMES-A. BROWNFIELD, oroovnvsron, KENTUCKY.

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the use of plugs or bolts for drawing'its members.

A further object is to produce a joint which will allow a water closet seat to be built up of short pieces comprisingthe odds and ends of the shop. A further object is to produce a joint which will not warp and pull apart.

These and other. objects are attained in the joint described in the following specification and illustrated in the accompanying drawings in Which:

Figure 1 is a perspective view of a seat employing the joint embodying my invention. Fig. 2 is a plan view of the seat embodying my invention, but showing it in the process of construction. Fig. 3 is a sectional view taken on the line 33 of Fig. 1 and upon an enlarged scale and illustrating the construction of the joint. Fig. 4 is a fragmental perspective view showing the man ner in which the oint formations are simultaneously made on the pieces to be joined. l The seat constructed with joints embodying my invention consists of a back piece 4, side pieces 5 and 6, a front piece 7, and looking blocks 8 and 9 adapted to enter between the front piece 7, and the side pieces 5 and 6. The joint formed between each of the pieces is constructed in the manner illustrated in Fig. 3 and consists in producing the same formation on both pieces forming the joint, the formation being such that when one of the pieces is reversed, the formation on the pieces will interlock closely with one another.

The joint embodying my invention is illustrated in Fig. 3 and in referring to this ijoint I have referred to only one of the pieces forming the joint, the reference characters being applied to the piece 5. The joint consists in forming on each piece, an undercut eccentric tongue 10, which is offset somewhat from the center and which is provided with a straight edge 11 and an in- Specifi cation of Letters I atent. P t eb- 15 1:916. Application 'fiiea'ma 3,1915. Serial no. 2 r v clined edge 12. "Adjacent to the straight edge is formed a tongue 13 which is provided with an inclined edge 14 extending outwardly to meet the edge 15 forming one face of the piece. On the opposite side of the undercut tongue 10,"and spaced away from its inclined edge 12, is a tongue 16 having anedge 17 parallel with its edge18 which forms the opposite face ofthe piece. Joining these parallel edges an inclined edge 19 parallel to" the edge 14 of the tongue 13 I is provided. The point 20 formed where the edges 17 and 19 meet, is in alinement with the end of the tongue and the tongues being spaced apart, the edge 17 of the tongue 16 cooperates with the inclined edge them of the same shape as the tongue 10.

In forming my improved joint. I have also constructed the tongues so-that the point 21 where the sides 14 and 15 of the tongue 13 meet, will be opposite the point 22 where 12 of the tongue 10 to form a space between the sides 18 and 19 of the tongue 16 meet.

This formation and arrangement of the tongues as above described is for the purpose of providing a construction which will interlock adjacent pieces as shown in Fig. 3, and is particularly adapted to use in the construction of split water closet seats since the interlocking feature of the tongues 10 and the closely engaging contact of the tongues 13 and 16, will produce a oint which is strong, in that it prevents the pieces pulling apart as well as prevents them warping or bending with relation to one another. In addition to this the close contactofthe various tongues produces a thoroughly sanitary construction, in that it affords no possible crevice for thegermination of vermin. g 7

Another feature of importance is the ease with which the tongues may be formed simultaneously on both of the pieces to be joined. This is more clearly shown in Fig. 4 in which two of the pieces to be joined, have had the tongues formed simultaneously on both of them. fThis feature permits the tongues to be formed in one half the time which would ordinarily be taken to form ce I them separately as in other joint construc- V tions.

In assembling the pieces forming the seat,

piece 7 is then brought into spaced position The front with relation to the joined pieces 4, 5 and 6, .and the locking blocks are gradually forced into position as shown in Fig. 2 until the entire seat has been built up to the form shown in Fig. 1. In this rough condition the seat is ready for finishing. During the assembling operation the severalpieces are drawn together to produce an absolutely solid construction in which there is no possibility of the formation of any loose joints which would destroy the strength of the seat and permit of the entrance of water which would Warp the seat. In addition to this the close contacting construction of the joints positively prevents the entrance of and germination of vermin and bacteria which would render the seat unsanitary.

Having thus described my invention, what I claim is:

A joint construction for securing adjacent members together, comprising an undercut tongue, a pointed tongue located adjacent to the undercut tongue, having an inclined edge and a straight edge forming an extension of one face of the member, anda sec- 0nd pointed tongue spaced from the under:

cut tongue, having aninclined edge parallel to the inclined edge of the first mentioned pointed tongue and forming an extension I of the opposite faceof the member, the space between the undercut tongue and the second mentioned pointed tongue being adapted to receive the undercut tongue of the cooperating member, and the inclined edges of the first and second mentioned pointed JAMES A. BROWNFIELD, Witnesses:

WALTER F. MURRAY, WV. THORNTON BOGERT.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

